Index: trunk/ppSub/src/ppSubReadout.c
===================================================================
--- trunk/ppSub/src/ppSubReadout.c	(revision 20568)
+++ trunk/ppSub/src/ppSubReadout.c	(revision 20611)
@@ -623,4 +623,11 @@
     }
 
+    // Higher order background subtraction using psphot
+    if (!ppSubBackground(outRO, config, view)) {
+        psError(PS_ERR_UNKNOWN, false, "Unable to subtract background.");
+        psFree(outRO);
+        return false;
+    }
+
     // Renormalising for pixels, because that's what magic desires
     if (psMetadataLookupBool(&mdok, recipe, "RENORM")) {